diff options
Diffstat (limited to 'sound/usb/mixer.h')
| -rw-r--r-- | sound/usb/mixer.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h index 63101ae201cc..130123854a6c 100644 --- a/sound/usb/mixer.h +++ b/sound/usb/mixer.h @@ -10,6 +10,9 @@ struct usb_mixer_interface { /* array[MAX_ID_ELEMS], indexed by unit id */ struct usb_mixer_elem_info **id_elems; + /* the usb audio specification version this interface complies to */ + int protocol; + /* Sound Blaster remote control stuff */ const struct rc_config *rc_cfg; u32 rc_code; |